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Our calculators use established and scientifically validated formulas that are considered standard in the medical and fitness worlds.
Examples include the Mifflin-St Jeor formula for basal metabolic rate (BMR) and the U.S. Navy formulas for estimating body fat percentage.
While these formulas have shown a high degree of accuracy in clinical studies, it is crucial to understand that they remain estimates.
Factors such as individual genetic differences, body composition (muscle-to-fat ratio), and specific health conditions can influence the results.
Therefore, these calculations are intended as an informational guideline and a motivational tool.
They provide an excellent starting point for gaining insight into your health but should never replace a professional medical evaluation.
For personal and medical advice, it is always necessary to consult a doctor or a qualified healthcare provider who can assess your complete health profile.

No, we place the utmost importance on your privacy.
All the data you enter, such as age, weight, height, and body measurements, is used exclusively to perform the calculations in real-time.
These calculations take place in your own web browser or are processed anonymously on our server without any identifying markers.
No personal input data is stored in our databases.
This means your information remains confidential and is not saved, shared, or sold.
For a detailed overview of our privacy practices, you can review our privacy policy.

A complete picture of health cannot be summarized in a single metric.
Although the Body Mass Index (BMI) is a useful and quick indicator, it has its limitations.
For instance, BMI does not distinguish between muscle and fat mass, which can lead to a very muscular person being incorrectly classified as 'overweight.'
By offering a wide range of metrics, such as the waist-to-height ratio (WHtR), body fat percentage, fat-free mass index (FFMI), and metabolic age, we provide a holistic and nuanced overview of your health.
Each metric highlights a different aspect of your physiology, from body fat distribution to your cardiovascular fitness and muscle mass.
This helps you get a more complete and accurate picture of your well-being and set targeted goals.

Absolutely not.
This tool is developed for educational, informational, and motivational purposes only.
It is designed to help you better understand your body, but it cannot account for your full medical history, genetics, or lifestyle.
The results are not a substitute for a medical diagnosis, advice, or treatment.
For instance, while the calculator might show a high body fat percentage, only a doctor can determine if this is linked to conditions like high cholesterol, high blood pressure, or an increased risk of diabetes.
Symptoms or health concerns should always be discussed with a qualified doctor who can conduct a thorough evaluation.
Consider this tool a valuable companion on your health journey, not the doctor itself.

To get a reliable picture of your progress, consistency is key.
We recommend measuring yourself once every 2 to 4 weeks, always under the same conditions: preferably in the morning, after visiting the restroom, and before breakfast.
This creates a reliable baseline, making trends visible.
Daily measurements can be frustrating due to normal fluctuations in body weight, for instance, from fluid retention.
Focus on the long-term trend rather than a single measurement; one measurement is a snapshot, but a series of measurements tells a story.
If you notice a consistent trend over several measurements, you can use this information to adjust your diet or exercise plan.

Every metric and acronym on our results page is accompanied by a small information icon (often an 'i').
When you click on it, a pop-up window appears with a detailed explanation.
We believe that understanding these terms is a key step in taking control of your health.
For example, your BMI gives a general indication of your weight status, while your BMR (Basal Metabolic Rate) tells you how many calories your body burns at rest.
By providing these clear, on-demand explanations, we aim to empower you with the knowledge needed to correctly interpret the results and make informed decisions.
We encourage you to explore this information to gain a deeper insight into what each result means for you.